Description
An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which may contain data from previous requests.
CVSS breakdown
CVSS 3.0
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- Red Hat / undertown/a – n/a
References
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14642
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0364
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0362
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0365
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0380
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1107
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1108
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1106
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1140